【C++编程哲学妙喻】- C++大师:从石匠到城市规划师

#include <iostream>#include <memory>#include <vector>// 🔨 新手：关注语法石头class StoneCutter {public:    void carefully_carve_stones() {        int* raw_stone = new int(42);  // 手动雕刻每一块石头        // 小心翼翼处理指针...        if (raw_stone != nullptr) {            *raw_stone += 1;        }        delete raw_stone;  // 不敢忘记清理    }};// 🏠 高手：建造房屋模块class HouseBuilder {    class Room {        std::vector<std::string> furniture;    public:        void addFurniture(const std::string& item) {            furniture.push_back(item);        }    };    std::vector<Room> rooms;    std::unique_ptr<HeatingSystem> heating;  // 智能管理资源public:    void buildHouse() {        rooms.emplace_back();  // 添加房间        rooms.back().addFurniture("床");        heating = std::make_unique<HeatingSystem>();    }};// 🏙️ 大师：城市规划师class CityPlanner {    class District {  // 功能区规划        std::string function;        std::vector<std::unique_ptr<Building>> buildings;    public:        District(const std::string& func) : function(func) {}        void addBuilding(auto&& building) {            buildings.push_back(std::make_unique<Building>(building));        }        void optimizeLayout() {            // 优化区域内的建筑布局            std::sort(buildings.begin(), buildings.end(),                      [](const auto& a, const auto& b) {                         return a->efficiency() > b->efficiency();                     });        }    };    std::vector<District> districts;    ResourceManager resources;  // 资源管理系统    TrafficPlanner traffic;     // 交通规划系统public:    void designCity() {        // 规划商业区        districts.emplace_back("商业区");        districts.back().addBuilding(ShoppingMall{});        districts.back().addBusiness(OfficeTower{});        // 规划住宅区          districts.emplace_back("住宅区");        districts.back().addBuilding(ApartmentComplex{});        districts.back().addBuilding(School{});        // 系统级优化        optimizeCityLayout();        planInfrastructure();    }private:    void optimizeCityLayout() {        // 大师视野：系统级优化        for (auto& district : districts) {            district.optimizeLayout();        }        // 考虑缓存局部性、资源分配、扩展性...        std::cout << "优化城市布局，提升系统性能\n";    }    void planInfrastructure() {        // 规划资源流向、通信网络、未来扩展...        std::cout << "规划基础设施，确保系统可扩展\n";    }};class Building {};class ShoppingMall : public Building {};class OfficeTower : public Building {};class ApartmentComplex : public Building {};class School : public Building {};struct HeatingSystem {};struct ResourceManager {};struct TrafficPlanner {};// 🎯 成长路径演示void demonstrate_growth() {    std::cout << "=== C++大师成长之路 ===\n";    std::cout << "🔨 新手石匠:\n";    StoneCutter novice;    novice.carefully_carve_stones();    std::cout << "小心处理每一块语法石头\n\n";    std::cout << "🏠 高手建筑师:\n";    HouseBuilder expert;    expert.buildHouse();    std::cout << "构建健壮的类和模块\n\n";    std::cout << "🏙️ 大师规划师:\n";    CityPlanner master;    master.designCity();    std::cout << "规划整个系统架构\n";}int main() {    demonstrate_growth();    std::cout << "\n从石头到城市，这就是C++大师的视野升华！\n";}